Arborescent growth of crystals of pure native copper, with silver. The piece measures ± 6.5 high x 3.7 wide and 1 cm thick, and weighs 30 gr.
Keweenaw County ,, Michigan (USA)
Arborescent growth of crystals of pure native copper, with silver. The piece measures ± 6.5 high x 3.7 wide and 1 cm thick, and weighs 30 gr.
Keweenaw County ,, Michigan (USA)